The Compact — Version 0

README.md

@@ -40,6 +40,8 @@ $ forge test
 ```
 
 ## Usage
+Version 0 of The Compact is currently deployed on mainnet, Sepolia, Unichain testnet, Base, and Base Sepolia at `0x00000000000018DF021Ff2467dF97ff846E09f48`. As long as the prerequisite deployer contract and Permit2 are deployed to a given chain, The Compact can be deployed to any new chain by running `forge script script/TheCompact.s.sol`.
+
 ### 1) Register an Allocator
 To begin using The Compact, an allocator must first be registered on the contract. Anyone can register any account as an allocator by calling the `__register` function as long as one of the following requirements are met:
  - the allocator being registered is the caller

script/TheCompact.s.sol

@@ -4,6 +4,10 @@ pragma solidity ^0.8.13;
 import { Script, console } from "forge-std/Script.sol";
 import { TheCompact } from "../src/TheCompact.sol";
 
+interface ImmutableCreate2Factory {
+    function safeCreate2(bytes32 salt, bytes calldata initializationCode) external payable returns (address deploymentAddress);
+}
+
 contract TheCompactScript is Script {
     TheCompact public theCompact;
 
@@ -12,7 +16,23 @@ contract TheCompactScript is Script {
     function run() public {
         vm.startBroadcast();
 
-        theCompact = new TheCompact();
+        // ensure permit2 is deployed
+        assert(address(0x000000000022D473030F116dDEE9F6B43aC78BA3).code.length > 0);
+
+        // to deploy using create2 (need to rederive salt and target address when changing code):
+        bytes32 salt = bytes32(0x00000000000000000000000000000000000000008a0f466a78cd1102ce3d82f7);
+        address targetAddress = address(0x00000000000018DF021Ff2467dF97ff846E09f48);
+        // ensure create2 deployer is deployed
+        address immutableCreate2Factory = address(0x0000000000FFe8B47B3e2130213B802212439497);
+        assert(immutableCreate2Factory.code.length > 0);
+        // deploy it and check the target address
+        theCompact = TheCompact(ImmutableCreate2Factory(immutableCreate2Factory).safeCreate2(salt, type(TheCompact).creationCode));
+        assert(address(theCompact) == targetAddress);
+
+        // // to just deploy it directly:
+        // theCompact = new TheCompact();
+
+        assert(keccak256(bytes(theCompact.name())) == keccak256(bytes("The Compact")));
 
         vm.stopBroadcast();
     }

test/TheCompact.t.sol

@@ -83,6 +83,10 @@ interface EIP712 {
     function DOMAIN_SEPARATOR() external view returns (bytes32);
 }
 
+interface ImmutableCreate2Factory {
+    function safeCreate2(bytes32 salt, bytes calldata initializationCode) external payable returns (address deploymentAddress);
+}
+
 contract TheCompactTest is Test {
     TheCompact public theCompact;
     MockERC20 public token;
@@ -116,9 +120,22 @@ contract TheCompactTest is Test {
         (bool ok,) = permit2Deployer.call(permit2CreationCalldata);
         require(ok && permit2.code.length != 0, "permit2 deployment failed");
 
-        theCompact = new TheCompact();
-        token = new MockERC20("Mock ERC20", "MOCK", 18);
         anotherToken = new MockERC20("Another Mock ERC20", "MOCK2", 18);
+        token = new MockERC20("Mock ERC20", "MOCK", 18);
+
+        address immutableCreate2Factory = address(0x0000000000FFe8B47B3e2130213B802212439497);
+        bytes memory immutableCreate2FactoryRuntimeCode =
+            hex"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";
+        vm.etch(immutableCreate2Factory, immutableCreate2FactoryRuntimeCode);
+        bytes32 salt = bytes32(0x00000000000000000000000000000000000000008a0f466a78cd1102ce3d82f7);
+        address targetAddress = address(0x00000000000018DF021Ff2467dF97ff846E09f48);
+
+        // to deploy using create2 (need to rederive salt and target address when changing code):
+        theCompact = TheCompact(ImmutableCreate2Factory(immutableCreate2Factory).safeCreate2(salt, type(TheCompact).creationCode));
+        assertEq(address(theCompact), targetAddress);
+
+        // // to deploy using standard create:
+        // theCompact = new TheCompact();
 
         (swapper, swapperPrivateKey) = makeAddrAndKey("swapper");
         (allocator, allocatorPrivateKey) = makeAddrAndKey("allocator");